The system includes the following instruments: Model 7065 Hall Card, Model 2000 DMM, Model 6220 Current Source, Model 6485 Picoammeter, and Model 7001 Switch System.

• 该系统包括下列仪器：7065型霍尔卡、2000型数字多用表、6220型电流源、6485型皮安计和7001型开关系统。